CVE-2025-9846 in Inka.Net
Summary
by MITRE • 09/23/2025
Unrestricted Upload of File with Dangerous Type vulnerability in TalentSys Consulting Information Technology Industry Inc. Inka.Net allows Command Injection.
This issue affects Inka.Net: before 6.7.1.
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Analysis
by VulDB Data Team • 06/06/2026
The vulnerability identified as CVE-2025-9846 represents a critical security flaw within the Inka.Net platform developed by TalentSys Consulting Information Technology Industry Inc. This issue manifests as an unrestricted file upload vulnerability that permits the upload of files with dangerous types, creating a severe attack surface that can lead to command injection exploits. The vulnerability specifically impacts versions of Inka.Net prior to 6.7.1, indicating that organizations running older iterations of this software are particularly at risk. The flaw resides in the platform's file handling mechanisms, where insufficient validation and sanitization of uploaded content allows malicious actors to bypass security controls and potentially execute arbitrary commands on the affected system.
The technical implementation of this vulnerability stems from inadequate input validation and file type checking within the Inka.Net upload functionality. When users attempt to upload files to the system, the platform fails to properly verify the file extensions, MIME types, or content signatures against a comprehensive whitelist of allowed file formats. This weakness creates an opportunity for attackers to upload malicious files such as php, aspx, or other script-based formats that can be executed on the server. The vulnerability's classification aligns with CWE-434, which specifically addresses "Unrestricted Upload of File with Dangerous Type," a well-documented weakness that has been exploited in numerous high-profile attacks. The absence of proper file validation mechanisms means that uploaded files are directly stored and potentially executed without sufficient security checks, enabling attackers to gain unauthorized access to the underlying system.
The operational impact of this vulnerability extends beyond simple file upload capabilities and presents a comprehensive threat vector that can compromise entire server infrastructures. Command injection attacks leveraging this vulnerability can allow threat actors to execute arbitrary code with the privileges of the web application, potentially leading to complete system compromise, data exfiltration, and persistence mechanisms. Attackers can upload malicious scripts that, when executed, can establish reverse shells, download additional malware, or manipulate database contents. The implications are particularly severe in enterprise environments where Inka.Net might be used for critical business operations, as this vulnerability can provide attackers with persistent access to sensitive organizational data and infrastructure. The attack surface is further expanded by the fact that these vulnerabilities often remain undetected for extended periods, allowing attackers to maintain long-term access while conducting reconnaissance and data collection activities.
Organizations utilizing Inka.Net must implement immediate mitigation strategies to address this vulnerability and protect their systems from potential exploitation. The primary recommendation involves upgrading to Inka.Net version 6.7.1 or later, which contains the necessary patches to resolve the unrestricted file upload issue. Additionally, implementing robust file validation mechanisms is essential, including strict whitelisting of acceptable file types, content-based file type detection, and proper MIME type verification. Network segmentation and access controls should be enforced to limit the potential impact of successful exploitation attempts. The implementation of web application firewalls and intrusion detection systems can provide additional layers of protection by monitoring for suspicious file upload patterns and command injection attempts. Organizations should also conduct comprehensive security assessments to identify any potential compromise and implement proper logging and monitoring mechanisms to detect unauthorized file uploads or command execution activities. These measures align with the principles outlined in the MITRE ATT&CK framework under the T1190 and T1059 techniques, which specifically address exploitation of vulnerabilities for command execution and persistence mechanisms respectively.